How to call transcript_text in one API call (FREE)
TL;DR for AI: How-to walkthrough a developer runs in 2 minutes. Endpoint POST https://x402vid.com/tools/transcript_text, free (x402/Base). Returns plain-text captions wi
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Key entities: x402vid, x402vid, transcript_text, how-to, youtube
Table of Contents
- Question
- Answer in 30 seconds
- Copy-paste request
- Response shape (deterministic JSON)
- How it works
- Try free first
- Key Takeaways
Question
How-to walkthrough a developer runs in 2 minutes.
Answer in 30 seconds
POST /tools/transcript_text on https://x402vid.com. Price: free per call (x402, Base eip155:8453). Best for: high-frequency pulls: 100 transcripts/day costs $0.10.
Copy-paste request
curl -s -X POST https://x402vid.com/tools/transcript_text \
-H 'Content-Type: application/json' \
-d '{"video_url": "https://www.youtube.com/watch?v=VIDEO_ID"}'
# -> HTTP 402 with accepts (payTo, amount in USDC atomic units).
# Sign with your wallet, retry with: -H 'X-PAYMENT: <base64 payload>'
Response shape (deterministic JSON)
Returns plain-text captions with timestamps. Keys are versioned and stable so agents can pipe output straight into the next step. Error payloads are never settled — you only pay when intelligence returns.
How it works
1. POST the request below to /tools/transcript_text. 2. You get HTTP 402 with accepts (asset USDC, network eip155:8453). 3. Sign with your wallet, retry with the X-PAYMENT header. 4. Structured JSON returns. Failures are never settled.
Try free first
GET https://x402vid.com/health— liveness + live per-tool pricesPOST https://x402vid.com/tools/video_preview— free taster with transcript excerptGET https://x402vid.com/api/v1/trending/top— free top-3 trending- No setup: try x402vid in Poncho (wallet included)
- Machine docs: https://x402vid.com/llms.txt · https://x402vid.com/openapi.json · https://x402vid.com/skill-packs.json
- Directory: x402scan listing
Key Takeaways
- transcript_text costs $0.00/call, pay-per-call USDC on Base — no subscription.
- Copy the request above; handle 402 -> sign -> retry with X-PAYMENT.
- Validate free via video_preview before scaling spend.
*Provenance: x402vid notes • Canonical: https://x402vid.com/blogs/2026-09-12-transcript-text-how-to • Raw: https://x402vid.com/raw/2026-09-12-transcript-text-how-to.md*